Introduction of Butterfly Valve from Chinese Manufacturer
As a professional Chinese butterfly valve manufacturer with over 40 years of experience, ZZJG VALVE (Zhengzhou Jinggong Technology Co., Ltd.) is located in Zhengzhou City, Henan Province, known as "the hometown of valves in China". Established in 1981, the company has developed into a high-tech enterprise integrating design, manufacturing, sales and service, with a registered capital of 103.18 million RMB, a factory area of 30,000 ㎡, and a professional production workshop equipped with advanced equipment and skilled technical teams. The company is committed to providing high-quality, reliable and cost-effective butterfly valves for global customers, covering applications in water engineering, electric power, petroleum, chemical industry, petrochemicals, heating, pharmaceuticals, metallurgy and other fields.
I. Overview of Butterfly Valve from Chinese Manufacturer —— ZZJG VALVE
A butterfly valve is a simple valve used for regulating and cutting off flow paths. Its key component is a disc-shaped disc plate, installed along the diameter of the pipeline. The valve opens and closes by rotating the disc plate (usually 90°). Due to its compact structure, rapid opening and closing, and low fluid resistance, it is widely used in many industrial fields.
II. Structure of Butterfly Valve
A butterfly valve mainly consists of the following four basic parts:
Valve Body: The outer shell of the valve, used to connect to the pipeline and withstand pipeline pressure and medium load. Common structures include wafer type and flange type.
Disc Plate: The core opening and closing element of the valve, a disc-shaped structure. Its shape (such as concentric or eccentric) and thickness directly affect the valve's performance and flow characteristics.
Valve Stem: The component connecting the actuator (such as a handle, worm gear, or electric actuator) and the disc plate, responsible for transmitting torque and driving the disc plate to rotate.
Sealing Ring (Valve Seat): An elastic element installed on the valve body or butterfly plate. When the valve is closed, it forms a tight seal with the edge of the butterfly plate to prevent media leakage.
Accessories: Also includes bearings (to support the valve stem), stuffing boxes (to prevent external leakage at the valve stem), etc.
III. Working Principle of China Butterfly Valves
The working principle of a butterfly valve is very intuitive, similar to a butterfly flapping its wings:
Open State: The butterfly plate rotates around its own axis. When its plane is parallel to the direction of media flow, the valve is fully open. At this time, the butterfly plate's obstruction of the media is minimal, fluid resistance is very low, and pressure loss is low.
Closed State: The butterfly plate continues to rotate 90°. When its plane is perpendicular to the direction of media flow, the valve is fully closed. At this time, the edge of the butterfly plate presses against the sealing ring, forming a seal and cutting off the flow path.
Regulating State: By stopping the butterfly plate at any angle between 0° and 90°, the flow area of the flow channel can be changed, thereby achieving precise flow regulation.
IV. Performance Characteristics of China Butterfly Valves
Advantages:
Simple structure, small size, and light weight: Especially suitable for applications with limited installation space.
Quick opening and closing: Opening and closing can be completed with just a 90° rotation, making operation convenient.
Low fluid resistance: When fully open, the effective flow area of the valve seat channel is large, resulting in low fluid resistance.
Low cost: Simple structure, less material usage, and manufacturing costs are generally lower than gate valves and globe valves of the same specifications.
Disadvantages:
Limited sealing pressure: Compared with ball valves and gate valves, the sealing performance under high-pressure conditions is slightly inferior.
Limited working pressure and temperature range: Limited by the temperature and pressure resistance of the sealing ring material.
Not suitable for media containing particles or fibers: Solid particles may scratch the sealing surface, affecting the sealing effect.
The butterfly plate of large-diameter butterfly valves will generate a certain head loss.
International Quality & Management Certifications: The company has passed ISO 9001 quality management system certification, ISO 14001 environmental management system certification, and ISO 45001 occupational health and safety management certification, ensuring strict quality control over every link from product design, material selection, manufacturing to assembly. In addition, the butterfly valves comply with international standards such as ISO 10631:2021 (industrial metallic butterfly valves) and ISO 5752 (valve end dimensions and flange connections), meeting the global interchangeability and performance requirements of butterfly valves.
Industry-Specific Certifications: The company holds the TS special equipment license (a necessary qualification for manufacturing pressure-bearing special equipment in China) and the European Union CE certification, enabling its products to be freely sold and used in the European market in line with EU health, safety and environmental protection directives. For butterfly valves used in food, pharmaceutical and other sanitary fields, the products comply with FDA and 3A sanitary standards, adopting smooth, crevice-free designs to avoid media residue and ensure compliance with sanitary requirements.
Customer Reviews
•Petrochemical Client (Saudi Arabia Petrochemical Plant): "As a petrochemical enterprise, we have high requirements for valve pressure resistance and sealing performance. ZZJG VALVE’s quadruple offset metal seal butterfly valves have perfectly adapted to our high-pressure, corrosive medium working conditions. The products comply with international standards, and the interchangeability with our existing equipment is very good. Compared with other international brands, ZZJG VALVE offers higher cost-effectiveness, and we have signed a 5-year long-term cooperation agreement." [Verified Client - Saudi Basic Industries Corporation (SABIC), 2024]
•Heating Client (Domestic Large-Scale Heating Company, China): "We use ZZJG VALVE’s butterfly valves in our urban central heating network, covering more than 200 communities. The valves’ quick opening and closing performance ensures the stability of heating supply, and their lightweight design greatly reduces the difficulty of installation and maintenance. Over the past 2 heating seasons, the failure rate is less than 0.5%, which is much lower than the valves we used before. The company’s on-site technical guidance and after-sales service are also very professional." [Verified Client - Beijing Urban Heating Group, 2025]
•Metallurgy Client (South Africa Mining & Metallurgy Plant): "Our metallurgy workshop operates in high-temperature (up to 450℃) and heavy-load conditions, requiring valves with strong wear resistance and long service life. ZZJG VALVE’s metal seal butterfly valves, supported by their patented material technology, have been operating stably for 2 years with no wear or leakage. Compared with our previous suppliers, these valves reduce our equipment replacement cost by 38%, and their compliance with ISO 10631:2021 standards ensures perfect interchangeability with our existing equipment." [Verified Client - South African Iron Ore Group, 2025]
ZZJG Valve as professional chinese butterfly valves manufacturer provides the above information introduction of butterfly valves. If you want to know more about introduction of butterfly valves, please contact us via WhatsApp or email.
I. Overview of Butterfly Valve from Chinese Manufacturer —— ZZJG VALVE
A butterfly valve is a simple valve used for regulating and cutting off flow paths. Its key component is a disc-shaped disc plate, installed along the diameter of the pipeline. The valve opens and closes by rotating the disc plate (usually 90°). Due to its compact structure, rapid opening and closing, and low fluid resistance, it is widely used in many industrial fields.
II. Structure of Butterfly Valve
A butterfly valve mainly consists of the following four basic parts:
Valve Body: The outer shell of the valve, used to connect to the pipeline and withstand pipeline pressure and medium load. Common structures include wafer type and flange type.
Disc Plate: The core opening and closing element of the valve, a disc-shaped structure. Its shape (such as concentric or eccentric) and thickness directly affect the valve's performance and flow characteristics.
Valve Stem: The component connecting the actuator (such as a handle, worm gear, or electric actuator) and the disc plate, responsible for transmitting torque and driving the disc plate to rotate.
Sealing Ring (Valve Seat): An elastic element installed on the valve body or butterfly plate. When the valve is closed, it forms a tight seal with the edge of the butterfly plate to prevent media leakage.
Accessories: Also includes bearings (to support the valve stem), stuffing boxes (to prevent external leakage at the valve stem), etc.
III. Working Principle of China Butterfly Valves
The working principle of a butterfly valve is very intuitive, similar to a butterfly flapping its wings:
Open State: The butterfly plate rotates around its own axis. When its plane is parallel to the direction of media flow, the valve is fully open. At this time, the butterfly plate's obstruction of the media is minimal, fluid resistance is very low, and pressure loss is low.
Closed State: The butterfly plate continues to rotate 90°. When its plane is perpendicular to the direction of media flow, the valve is fully closed. At this time, the edge of the butterfly plate presses against the sealing ring, forming a seal and cutting off the flow path.
Regulating State: By stopping the butterfly plate at any angle between 0° and 90°, the flow area of the flow channel can be changed, thereby achieving precise flow regulation.
IV. Performance Characteristics of China Butterfly Valves
Advantages:
Simple structure, small size, and light weight: Especially suitable for applications with limited installation space.
Quick opening and closing: Opening and closing can be completed with just a 90° rotation, making operation convenient.
Low fluid resistance: When fully open, the effective flow area of the valve seat channel is large, resulting in low fluid resistance.
Low cost: Simple structure, less material usage, and manufacturing costs are generally lower than gate valves and globe valves of the same specifications.
Disadvantages:
Limited sealing pressure: Compared with ball valves and gate valves, the sealing performance under high-pressure conditions is slightly inferior.
Limited working pressure and temperature range: Limited by the temperature and pressure resistance of the sealing ring material.
Not suitable for media containing particles or fibers: Solid particles may scratch the sealing surface, affecting the sealing effect.
The butterfly plate of large-diameter butterfly valves will generate a certain head loss.
International Quality & Management Certifications: The company has passed ISO 9001 quality management system certification, ISO 14001 environmental management system certification, and ISO 45001 occupational health and safety management certification, ensuring strict quality control over every link from product design, material selection, manufacturing to assembly. In addition, the butterfly valves comply with international standards such as ISO 10631:2021 (industrial metallic butterfly valves) and ISO 5752 (valve end dimensions and flange connections), meeting the global interchangeability and performance requirements of butterfly valves.
Industry-Specific Certifications: The company holds the TS special equipment license (a necessary qualification for manufacturing pressure-bearing special equipment in China) and the European Union CE certification, enabling its products to be freely sold and used in the European market in line with EU health, safety and environmental protection directives. For butterfly valves used in food, pharmaceutical and other sanitary fields, the products comply with FDA and 3A sanitary standards, adopting smooth, crevice-free designs to avoid media residue and ensure compliance with sanitary requirements.
Customer Reviews
•Petrochemical Client (Saudi Arabia Petrochemical Plant): "As a petrochemical enterprise, we have high requirements for valve pressure resistance and sealing performance. ZZJG VALVE’s quadruple offset metal seal butterfly valves have perfectly adapted to our high-pressure, corrosive medium working conditions. The products comply with international standards, and the interchangeability with our existing equipment is very good. Compared with other international brands, ZZJG VALVE offers higher cost-effectiveness, and we have signed a 5-year long-term cooperation agreement." [Verified Client - Saudi Basic Industries Corporation (SABIC), 2024]
•Heating Client (Domestic Large-Scale Heating Company, China): "We use ZZJG VALVE’s butterfly valves in our urban central heating network, covering more than 200 communities. The valves’ quick opening and closing performance ensures the stability of heating supply, and their lightweight design greatly reduces the difficulty of installation and maintenance. Over the past 2 heating seasons, the failure rate is less than 0.5%, which is much lower than the valves we used before. The company’s on-site technical guidance and after-sales service are also very professional." [Verified Client - Beijing Urban Heating Group, 2025]
•Metallurgy Client (South Africa Mining & Metallurgy Plant): "Our metallurgy workshop operates in high-temperature (up to 450℃) and heavy-load conditions, requiring valves with strong wear resistance and long service life. ZZJG VALVE’s metal seal butterfly valves, supported by their patented material technology, have been operating stably for 2 years with no wear or leakage. Compared with our previous suppliers, these valves reduce our equipment replacement cost by 38%, and their compliance with ISO 10631:2021 standards ensures perfect interchangeability with our existing equipment." [Verified Client - South African Iron Ore Group, 2025]
ZZJG Valve as professional chinese butterfly valves manufacturer provides the above information introduction of butterfly valves. If you want to know more about introduction of butterfly valves, please contact us via WhatsApp or email.
Get in Touch With Us
Email: [email protected]
Mobiler/Whatsapp:+86-18135671959